I don't really see it as a problem. Scumming shops for locker items is only as good as all the shop unlocks you've earned and all the really good stuff costs a decent chunk of gold. Half the best unlocks are from the Vicious dungeons and if you need to re-locker those, you've got to do them again. Plus, it's nice to have a decent source of locker items if you, say, replaced something common but useful (Soul Orb, Balanced Dagger, Midas Gloves, et cetera) with something like the Naga Cauldron or Namtar's Ward and then later decide you don't like them so much, you don't have to go running all over every dungeon trying to find what should be a pretty common item.
I say leave as is.